401521132 has 24 divisors (see below), whose sum is σ = 713185200. Its totient is φ = 197768256.

The previous prime is 401521111. The next prime is 401521171. The reversal of 401521132 is 231125104.

It is a super-2 number, since 2×401521132² = 322438438885122848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127594 + ... + 130702.

It is an arithmetic number, because the mean of its divisors is an integer number (29716050).

Almost surely, 2^401521132 is an apocalyptic number.

It is an amenable number.

401521132 is a deficient number, since it is larger than the sum of its proper divisors (311664068).

401521132 is a wasteful number, since it uses less digits than its factorization.

401521132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3585 (or 3583 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 401521132 is about 20037.9922147904. The cubic root of 401521132 is about 737.7391013304.

Adding to 401521132 its reverse (231125104), we get a palindrome (632646236).

The spelling of 401521132 in words is "four hundred one million, five hundred twenty-one thousand, one hundred thirty-two".